... Vaillant wireless programmable room thermostat control then http://www.uk-plumbing.com/vaillant-vrt360f-rf-wireless-programmable-room-thermostat-p-42972.html or if you require a hard wired programmable thermostat then http://www.uk...

... dimensions mean minimal, if any, pipe work changes. No changeover thermostats or special relays are required. A robust manual thumbwheel and valve position indicator helps simplify commissioning and system checking. Actuator replacement does...